Android Utililty Methods Distance Calculate

List of utility methods to do Distance Calculate

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Description

The list of methods to do Distance Calculate are organized into topic(s).

Method

StringgetMessageForDistance(long distance)
get Message For Distance 
if (distance == 0)
    return TODAY;
if (distance == 1)
    return TOMORROW;
if (distance == -1)
    return YESTERDAY;
String pastOrFuture = distance > 0 ? AWAY : PAST;
distance = distance < 0 ? distance * -1 : distance;
...
StringcalculateEte(boolean useBearing, double distance, double speed, double bearing, double heading)
Fetch the estimate travel time to the indicated target 
if (0 == speed) {
    return "--:--";
Time eteRaw = fetchRawEte(useBearing, distance, speed, bearing,
        heading);
if (null == eteRaw) {
    return "--:--";
int eteHr = eteRaw.hour;
int eteMin = eteRaw.minute;
int eteSecond = eteRaw.second;
if (eteHr > 99) {
    return "XX:XX";
if (eteHr > 0) {
    String hr = String.format(Locale.getDefault(), "%02d", eteHr);
    String min = String.format(Locale.getDefault(), "%02d", eteMin);
    return hr + ":" + min;
String min = String.format(Locale.getDefault(), "%02d", eteMin);
String sec = String.format(Locale.getDefault(), "%02d", eteSecond);
return min + "." + sec;
TimefetchRawEte(boolean useBearing, double distance, double speed, double bearing, double heading)
Fetch the raw estimated time enroute given the input parameters 
double xFactor = 1;
if (useBearing) {
    double angDif = angularDifference(heading, bearing);
    if (angDif >= 90)
        return null;
    xFactor = Math.cos(angDif * Math.PI / 180);
double eteTotal = (distance / (speed * xFactor)) * 3600;
...
doubledistance(double lat1, double lon1, double lat2, double lon2, char unit)
Calculates the distance between two geo-coordinates 
double theta = lon1 - lon2;
double dist = Math.sin(deg2rad(lat1)) * Math.sin(deg2rad(lat2))
        + Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2))
        * Math.cos(deg2rad(theta));
dist = Math.acos(dist);
dist = rad2deg(dist);
dist = dist * 60 * 1.1515;
if (unit == 'K') {
...
doublecomputeSpeed(int distance, long duration)
Computes the average speed in km/h. 
return ((double) distance / 1000)
        / ((double) duration / DateTimeConstants.MILLIS_PER_HOUR);
intgetClosestStore(ArrayList storeIds, SparseArray distanceMap)
get Closest Store 
float closestDistance = -1;
int closestStore = 0;
if (storeIds != null && distanceMap != null) {
    for (int j = 0; j < storeIds.size(); j++) {
        float nextDistance = distanceMap.get(storeIds.get(j));
        if (closestDistance < 0 || nextDistance < closestDistance) {
            closestDistance = nextDistance;
            closestStore = storeIds.get(j);
...
UritoDistanceSearchUri(Uri contentUri, Location location, double distance)
Makes a URI that queries the locatable item by distance. 
return contentUri
        .buildUpon()
        .appendQueryParameter(
                SERVER_QUERY_PARAMETER,
                location.getLongitude() + ","
                        + location.getLatitude() + "," + distance)
        .build();
DisplaygetDisplay(Activity activity)
get Display 
WindowManager wm = (WindowManager) activity
        .getSystemService(Context.WINDOW_SERVICE);
return wm.getDefaultDisplay();